Search results for "Greenberg"
showing 6 items of 6 documents
Vaghezze e stravaganze para-letterarie nella critica d’arte anglo-americana. L’art-writing nel secondo Novecento da strategia retorica a genere auton…
2019
Vagueness and para-literary extravagance in the Anglo-American art criticism. Art-writing in the second half of the twentieth century from a rhetorical strategy to an autonomous genre · The essay offers an analysis of the transformations that occurred due to the dynamic artistic debate in the United States in the second half of the 20th century, when art-writing and art criticism were constantly subject to redefinition with regard to an object – the artwork – which was gradually becoming undetermined. Retracing the evolution of the reflections on art criticism, the paper shows how it progressively tended towards a form of autonomous narrative taking the steps from art – employing vagueness …
Entanglement detection in Josephson nanocircuits
2002
We describe a possible experimental scheme to generate and detect entanglement between charge states in superconducting nanocircuits, discriminating such entanglement from classical correlations. The case of maximally entangled singlet and GHZ states of two and three coupled Josephson junctions is discussed as an example.
Entangling a Three High-Q Cavity System in a GHZ State
2001
GHZ state generation of three Josephson qubits in the presence of bosonic baths
2013
We analyze an entangling protocol to generate tripartite Greenberger-Horne-Zeilinger states in a system consisting of three superconducting qubits with pairwise coupling. The dynamics of the open quantum system is investigated by taking into account the interaction of each qubit with an independent bosonic bath with an ohmic spectral structure. To this end a microscopic master equation is constructed and exactly solved. We find that the protocol here discussed is stable against decoherence and dissipation due to the presence of the external baths.
Greenberger-Horne-Zeilinger-state Generation in Qubit-Chains via a Single Landau-Majorana-Stückelberg-Zener π/2-pulse
2022
A protocol for generating Greenberger-Horne-Zeilinger states in a system of (Formula presented.) coupled qubits is proposed. The Hamiltonian model assumes (Formula presented.) -wise interactions between the (Formula presented.) qubits and the presence of a controllable time-dependent field acting upon one spin only. The dynamical problem is exactly solved thanks to the symmetries of the Hamiltonian model. The possibility of generating GHZ states simulating our physical scenario under both adiabatic and non-adiabatic conditions is within the reach of the experimentalists. This aspect is discussed in detail.